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Typhus is caused by one of two types of bacteria: Rickettsia typhi or Rickettsia prowazekii. The form of typus depends on which type of bacteria causes the infection.
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The four types of typhus cause similar types of illnesses, though varying in severity. Epidemic typhus causes fever , headache , weakness, and muscle aches. It also causes a rash composed of both spots and bumps. The rash starts on the back, chest...
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The term "Rickettsial diseases" is loosely applied to a variety of infectious diseases caused by gramnegative fastidious bacteria belonging to the genera Rickettsia, Orientia, Ehrlichia, and Coxiella . This grouping is justified by historical aspe...
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